1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0258b8c3a2b51b59cd6596fa6240a99e66360e70b9c8eb153ab57f5b8e3cc60a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8f906b7-fb79-4d72-a8b3-8cb9481698f8.json and https://artists.proofprofile.net/proofs/artist/e8f906b7-fb79-4d72-a8b3-8cb9481698f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1dbe968e16ccee90189b6a11042314ef12c496fcb390326380233056c1641f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22214964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b94d7ef3b2ad36c5aacf13de5902f4333df07bfffe705867e99a9d22054feec. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22265422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f1f6f0c4325157361c61a803e250bdb2efc7a6f345a8f9957067bc3e1d9113. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:00:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22265426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf591f129a79449cb85dd0791ead2fe69688a7c269addc6633efc071951c6c5a0. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22265427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5376a271cfe9e2400b096506815123719922dbcf967470ee17acc30dea2d8b. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22265428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4268641c489a5e5939253a03f6b3ca39a00aba3108248ef3ec2a27139d88a12. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22247520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192870dec2d5d9ef05b88d0220e4f3a849dec7e0e11f63611bece2d7ac8633be. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22247521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f03b5789e686695868531bd3a87317d1e867456bcf3df6bcb94654341f2e53. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22247522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39489415155b43f043daae695a9d2f6ab082313b098b3289ffe337e19a9b734. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22247523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8749d93249fcc1cd49a620d1796bc8ab489383d7966882171dd6e352646207cf. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22247524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e45ae8cd37d0a2dae368a018a14b13c9e9742438973a6b519f9e1590cb2471. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22247525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9544ef6b64b57a9bb95ea2412079593633ef2aff8465e95d3f67a4e02c6f2b8e. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22246796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8905f8ebb86e636371eefb69ad2c206f4706cbdf5b9428e96bc20d1dbc222af9. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22246797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246af8fad07baf8313371d6a1a390d40e05ac5c7258ebc9f68bfc1a44d58afda. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22246798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adc7b96b9f3cb0bc8d41299f6658e372b587e1d31093392960c45c23256b885. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22246799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa672a5e3f2f37370cecae86b96374768dbfd8c76544d61134021ab8d4ced21f1. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22246800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f459c2bdc8fbf99bba16391a22f31852d3215cb6820573684ad63852d4ad113. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22246802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bced6c89d5b304d8de8b890c58a0c6a479af1dc77a926ed5f3edc5556edef3. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32207660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9554eab0a638c10c089e0b4cc49c642abaaa283338f424f78c9590cfa474ce58. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32207661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec2ff2cc9bf149d501a26f0c340977d68748a1211c8580b77fc6f95a38f5c00. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:33:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32207662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd0849ad8025a8f9aba6131431cfa21f7e7e624a11cfebb23c0380bd65d5755. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32207663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607ad8510288ac87212b89cb9c901f6107cd2bded6afb36e8c38a73be45615d7. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:06:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32207665.
Regresa a Mí / No Estás / Labios Mentirosos - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a49082b7ea6396444e271425d37e2f60fe639028084ce71b777886bc7008a5e. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PEJM61708102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f8c7ce1d1c23de8968be28872f30a5d78b9accf911e1f4d1ab63e9bd091e0a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PEJM61708109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944414bd9e328bd9341f91cc77c5dd2b293d4b1620ceda170ebf8ffd9fbaf58a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PEJM61708103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa43b18eb622fce20db483b49f085764fdaefdea6f30b2a4f1652fbf6e3e90e. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32210451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e6e6acf9d52da146ea19844961907b69a2dbff0b4d81a6106ca8e8d3541152. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32210452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebb736236ef4283dc918468dd7b98cabbd128abd14ae0f0ebdd7aa2dc75fce6. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32210453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13179583985ded0e376971822a19108cf14f7bb1f3cd9821b94dd3841f63b20e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32210454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fd45c0c8d20231c516fa0d9f7ae135d5e6678c9469814e4444cc81c823277d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32210456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd141cc89886b02f88a1dbfaecc180924634d33b602dddb6862cf2070c0ff2a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB32210457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb572ca96560eb611a70f334028a7d6a281624425ef37852cbb515e1683d405cc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:38:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22371661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715801703d2ed057aa17f93015cf434dc88176a287cdd33507a4cd4c8f58c0bd. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:41:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62440356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8456d1bd09217a8b191d06e6975efbbce45b3369e1a0e4d93c87b44d7efb6f2f. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82415419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2f31ca816e4315f693998a5d3e3add44bf5105ead9eda784f0a81410e614b6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ772495705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b51a1acf821ebb32354e54a37b4fa8cbda970a80a5c31082189a05ee0dfa3c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92569639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03fd78447048275a1fa81aad2e0da90d4e4f4b390659ef4f2c9a3ccfcd11d22. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3FC2536610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6dbd80c0fde437a91d8079dccfb808cd102ef4f31ea1bbd46c9259604350bb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3FG2588102.